M3U files should map the disk also to multiple drives

Created by: goedzo

In a lot of amiga games, mapping multiple disks, to multiple drives reduces the amount of disk-swapping required when playing a game. In the UAE file, this was achieved by configuring multiple floppies to multiple drives like this:

floppy0=./././../../Roms/Commodore - Amiga/Dune II - Battle for Arrakis (1993)(Virgin)(M3)[cr PDX]a.adf floppy1=./././../../Roms/Commodore - Amiga/Dune II - Battle for Arrakis (1993)(Virgin)(M3)[cr PDX]a.adf floppy2=./././../../Roms/Commodore - Amiga/Dune II - Battle for Arrakis (1993)(Virgin)(M3)[cr PDX]a.adf floppy3=./././../../Roms/Commodore - Amiga/Dune II - Battle for Arrakis (1993)(Virgin)(M3)[cr PDX]a.adf floppy4=./././../../Roms/Commodore - Amiga/Dune II - Battle for Arrakis (1993)(Virgin)(M3)[cr PDX]a.adf floppy5=./././../../Roms/Commodore - Amiga/Dune II - Battle for Arrakis (1993)(Virgin)(M3)[cr PDX]a(Save).adf

It would be great with the m3u support, also the same mapping is applied so that all the disks in the m3u are also mapped to a new drive.